Mounting for rock drills



Mmh 11, 1924.- 1,486,120

L'. c. BAYLES. l

MOUNTING FCR'IRQCK DRILLs Filed April 2a. 192s 2 sheets-sheet 1 INVENTOR gal/id a 16.55

HIS ATTREY Y to bear against the Patented Mar. lll, lQZd.

maarre lliillii@ @FFME LEWIS C. BAYLES, OF EASTON, PENNSYLVANA, ASSIGNOR T0 INGERSOLL-RAND COM- PANY, 0F JERSEY CTY, NEW JERSEY, A COBJPOR-ATEON OFNEW JERSEY.

MOUNTING FOR ROCK IDRLLS.

Application filed April 23, 1923. Serial No. 635,383.

To all whom t may concern.'

Be it known thatl, Lewis C. BAYLns, a citizen of the United States, a resident of Easton, county of Northampton, and State of Pennsylvania, have invented a certain Mounting for Rock Drills, of whichV the following is a specification accompanied by drawings.

This invention relates to roel; drills, piclrs or the like, but more particularly to a mounting therefor.

The objects of the present invention are to produce a mounting from which a rock drill of the pavement breaker type or of the j aclrhaminer type may be conveniently suspended in such a manner that the weight thereof is counter-balanced at all times, while permitting the drill to be easily moved to any required location and position in front of the working face, and to any desired distance therefrom without any special adjustment of the mounting. W'ith such a mounting, the drill operator is able to work unhampered by a drill, which is not only heavy but extremely cumbersome. j

Further objects of the invention will hereinafter appear, and to all of these ends the invention is shown in one of its preferred forms, in the accompanying drawings, in whichy Figure 1 is a side elevation, ofthe supporting device with a rock drill attached thereto. f

Figure 2 is an enlarged detail view partly in transverse section, taken on the line 2-2 of Figure 1.

Figure 3 is a View in transverse section on the line 3-3 of Figure 1.

Figure A is a side elevation of a modified form of my invention, and

Figure 5v is a view in cross section taken on the line 5-5 of Figure 4.

Referring to the drawings, the colinun A is vertically adjustable on the screw B, which is provided with a screw head to which is secured the pointer lower wall of the rock, or as in this instance, a block placed thereon. In order to lock the column A from movement relative to the screw B, caused by the vibration set up in the operation of the tool, l provide a key E adapted to be inserted in the jaws or detents F of the column A A groove G in the screw B forms a guide Way for the key E and co- D adapted operates with the jaws or'detents for securing the column A from the' movement relative tothe screw B. A spring clip H suitably secured tothe key E encircles the screw B, so that the locking device may be moved up and down and maintained in any desired. position. Further details of construction of the column A, are described in my former Patent No. 1,450,709, granted April 3d, 1923.

A pointer .l is suitably secured to the upper end of the column A, and is adapted to bear-against the upper wall of the rock. For rotating the screw head C to raise or lower the column A, so that the pointers J and D may be forced against the upper and lower wall of the 'rock respectively, or disengaged therefronnas desired, l provide holes a in the screw head C into .which a bar or rod may be inserted.

A block L is provided with split end portions, which may be tightened Von the column A by any suitable means, as by a bolt b and nut c, so that relative movement between the column A and the block L may be prevented. A bar K is pivotally mounted on the bolt b, and in thisinstance, is provided with a bushing 0( for preventing thebolt from pinching on the bar K.

ln order to maintain the bar K at right angles to the in the recess e of" the 'block L, having a plunger l and stem d connected thereto. A coiled spring f in the recess c serves to force the plunger d outwardly, so that the plunger d may enter `the aperture g in the bar K thereby holding the bar in the desired position. By moving the head h onl the stem al outwardly, the bar K may be moved downwardly against the column A, as shown in dot and dash lines in Figure 1, so that transportationof `the column and bar will be made easier. rlhe bar K can rotate about the axis of the column A with the pointers D and J serving` as pivots.

A traveler O, 4having side plates l? and Q, is provided with rollers R mounted in the upper section thereof, to enable the traveler to move freely on the bar K. In the lower portion of the traveler O between the plates P and Q, l mount a plurality of sheaves S and S. A stop piece T is secured to one end of the bar K for limiting the .outward longitudinal movement of the traveler column A, l provide a latch v Yie Y Weight.

A pulley X having a sheave X is adapted to be attached to a lluid actuated roclr piclr having a cylinder a, to Which is secured the front head ZJ', adapted to receive the pick steel c for receiving bloWs of impact of the hammer piston. The band j surrounds and is secured in any suitable manner to the body of the rock pick Y, and is provided with a pivoted yoke ,le to Which is secured a hook o, attached to the yoke c of the pulley X.

A sheave V is mounted onl the support U on the block L, and serves as a guide for a cable W passing thereover. The cable Vf, in this instance, is secured at one end oi" the stop piece T, and passes around the sheave S, sheave X', back around the sheave S' and over the guiding sleeve V as shown. A counter-Weight Z, preferably one-halt the Weight of the tool Y, vis adapted to be attached to the outer end of the cable W.

The Weight Z serves to counter-balance the Weight of the supported tool, so that the operator is not hampered with any excessive The pulley arrangement is such that the Weight Z, above described, Will be moved twice-the distancey of the movement of the tool, in either vertical direction.

The roel: pick Y can be easily moved vertically below the level ol the bar lQ-and horizontally along the bar, thereby enabling roel; drills of the pavement breaker type,

or of the jackhamnier 1 type to be used lor driftinff or for tunneling Work. l/Vithriny supporting device, the operator is enabled to put his full energy into the drilling of holes, and not. in supporting the Weight of the drill, asY wouldotherwise be necessary.

In the modification shown inv Figure 4l,

Y and in the detail vievv of Figure 5, the blocf:

' L is pivotally connected to the column IA,

so that the bar lmayviotate about the axis o'l' the column il. The block L', in this instance, is not split, as in the construction Shown in Figures lY and 2, the tightening of the Vnut d on the bolt e will not have the effect of tightening the block on the column fr. lnstead of using' a pointer for the screw B, l provide a collar C having claws ll connected to the screw collar C, so'that the column A. Will not turn with the bar l,

l claim:

l. rlvhe combination with a column and a bar pivotally connected thereto and rotat# able about the axis thereof', means for loci;- ing said bar at right angles to the column, said means comprising` a latch, orp a supporting device for a rock drill comprising a traveler adapted to be moved longitudinally along the bar, means for limiting the ont Ward movement of the traveler, a sh'eave incenso mounted on the traveler', a pulley adapted to be attached to a roclr drill, a cable'secured at one end ol the bar, guiding sheave for the cable, and a counter-balance Weight adapted to be attached to the cable, whereby a roclr Vdrill may be supported any desired vertical lie'gllt below the level ot the bar. l

2. The combination with a vertically adjustable column, and a bar pivotally conncctcd thereto and rotatable about the axis thereof, means for locking the Vbar at right angles to the column, of a mounting lor a roel( drill comprising a traveler adapted to be moved lon 'tudinally along the bar, a sheave mounted on the traveler, means for limiting' the outward movement of the traveler on 'the bur, a guiding sheave, a puh ley adapted to be attached to a roelr drill, a cable secured at one end to the and pass` ing around sai c sheaves and pulley, and a counter-balance Weight, whereby a rock drill may be supported desired vertical height belou' the level of the bar. Y Y 3.. rlhe combination with a vertically adjustable column, and a bar pivotally con nente-d thereto and rotatable about the axis thereof, means ior locking the bar at right angles to the column, olf a mounting for a rock drill, comprising a traveler adapted to be moved Vlongitudinally along the bar, a sheave mounted on the traveler, a stop piece lor limiting the outward movement of the traveler, a guiding sheave, a pulley adapted to be attached toa roclr drill, a cable secured atthe outer end oit the barV and passing around said sheaves and pulley, and a counter-balance Weight adapted to be attached cable at acont the end thereof, Whereby a roclr drill may be supported at any de ired verticalheight below the'level of the ar.l

l. The combination with a vertically ad-Y justable column, s, bloeit pivotally mounted thereon, a bar pivotally counectedto the block, means for locking the bai' at right angles to the column, or' a mountingror a rock drill, comprising a traveler movable longitudinally' alongY the bar, sheaves mounted on the traveller, a pulley adapted to be a'tached to the rocl; drill, a cable secured at one end of the bar and passing around the sheaves und pulley, and a counter-bal the rock drill may be sup desired rertical height belen ancewveiffht adanted to be attached to the i @il 

